When gsi_reg_init() got added, its declaration was added to
"gsi_reg.h" without declaring the two struct pointer types it uses.
Add these struct declarations to "gsi_reg.h".

Fixes: e68cef8906ea ("net: ipa: introduce gsi_reg_init()")
Signed-off-by: Alex Elder <elder@linaro.org>
---
 drivers/net/ipa/gsi_reg.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ipa/gsi_reg.h b/drivers/net/ipa/gsi_reg.h
index f62f0a5c653d1..48fde65fa2e8a 100644
--- a/drivers/net/ipa/gsi_reg.h
+++ b/drivers/net/ipa/gsi_reg.h
@@ -10,6 +10,10 @@
 
 #include <linux/bits.h>
 
+struct platform_device;
+
+struct gsi;
+
 /**
  * DOC: GSI Registers
  *
-- 
2.34.1